public class Example12_2 {
    public static void main(String args[]) {
        Thread speakElephant;            //用Thread声明线程
        Thread speakCar;                 //用Thread声明线程
        ElephantTarget elephant;         //speakElephant线程的目标对象
        CarTarget car;                   //speakCar线程的目标对象
        elephant = new ElephantTarget();
        car = new CarTarget();
        speakElephant = new Thread(elephant);   //创建线程
        speakCar = new Thread(car);              //创建线程
        speakElephant.start();                    //启动线程
        speakCar.start();                        //启动线程
        for (int i = 1; i <= 15; i++) {
            System.out.print("主人" + i + "  ");
        }
    }
}
